Secretariat
The Secretariat of the Earth League is distributed among the Global Futures Laboratory at Arizona State University in the United States (ASU), the Climate Service Center Germany (GERICS) at the Helmholtz-Zentrum Geesthacht, and the Potsdam Institute for Climate Impact Research in Germany (PIK).
Close coordination within the Secretariat and among fellows ensures a truly integrated management of the Earth League’s concerns, ideas and endeavours.
Co-Chairs

Johan Rockström
Director, Potsdam Institute for Climate
Impact Research
Germany
Johan Rockström is an internationally recognized scientist on global sustainability issues, who led the development of the Planetary Boundaries framework.

Peter Schlosser
Vice President and Vice Provost of Global
Futures, Arizona State University
Impact Research
United States
Peter Schlosser is one of the world’s leading earth scientists, with expertise in earth’s hydrosphere and how humans affect the planet’s natural state.
Staff

Clea Edwards
Research Scientist, Global Futures Laboratory, Arizona State University
United States
With a background in institutions that work at the boundary between knowledge and action for sustainability, Clea comes to the Earth League after several years in public charter school administration.

Helmke Hepach
Scientist, Climate Service Center Germany Helmholtz-Zentrum Geesthacht
Germany
Helmke’s research expertise includes air-sea gas exchange of marine trace gases, inorganic and organic halogen cycling in the ocean and the lower troposphere, and coastal biochemical processes.